Window-screen



(No Model.)

A. H. HILL. WINDOW SCREEN.

Patented May 5, 1885.

IA VENTOR flztorney WITNESSES UNITED STATES PATENT OFFICE.

ALEXANDER H. HILL, OF OSKALOOSA, IOWA.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 317,456, dated May 5, 1885. Application filed April 25, 1883. (No modch) To (LZZ whom it may concern.-

Be it known that I, A. H. HILL, of Oskaloosa, in the county of Mahaska and State of Iowa, have invented certain newand useful Improvements in Insect-Screens and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in which- Figure 1 is an inner side elevation of my invention, and Fig. 2 is a side elevation taken on the line a; 00 of Fig. 1.

This invention relates to improvements in that class of window-frames in which there is a removable and adjustable screen adapted to operate in connection with the ordinary window-sash.

The object of this invention is to so arrange the screen and sash that a cut off will be formed to exclude insects, 650., and which at the same time will admit of perfect ventilation. These objects are obtained by the construction shown in the drawings and hereinafter described.

In the accompanying drawings, A represents the window-frame, and B C the windowsashes of the ordinary construction, and D a screen-frame supplied with wire cloth. The screen D is arranged to slide in the windowframe on the inner side of the sash, and may be operated by means of knob g, and it can be used at the top or bottom of the windowframe, as found desirable. The screen D has secured to one side suitable springs, a a, which bear in a suitable groove in one side of the frame A. The opposite groovemay be shallow, so that by forcing the screenD in the difrom the window-frame.

rection of the deep groove the opposite edge of the screen can be disengaged from the shallow groove, and the said screen can be removed The screen has secured to it moldings I), both at the top and bottom on the outside, so that when the screen is at the bottom of the window-frame A, and when the sash G is thrown up, the molding b, at the top of the screen, in connection with the bottom rail of the sash, forms a cut-off for the exclusion of insects, &c., and ventilation is secured from the bottom of the window-frame, and when the sash B is let down and the screen D is at the top of the window-frame the molding b at the bottom of the screen, in connection with the upper rail of the sash G, will together form a cutoff at that point. The upper sash, B, can be lowered to any point, and a cut-01f then be formed by the meeting of the lower sash and molding at the bottom of the screen coming in contact with each other, thereby admitting ventilation through the upper part of the window-frame.

Having described my invention, what I clai1nis The combination of the sashes 13 O with the screen D, having at the top and bottom moldings 1), upon the outside thereof, to be operated in connection with the rails of the lower sash to form a cutoff, as set forth.

In testimony that I claim the foregoing as my own invention I affix my signature in presence of two witnesses.

ALEXANDER H. HILL.

\Vitnesscs It. DUMONT, IRA J. STODDARD, Jr. 

